Mitt is no betting man like John McCain. His safest choice is still Rob Portman, and he will pick him soon enough.
In the meantime, Mitt will continue to tease the others, along the path laid out by Queen Elizabeth for broadening support 500 years ago. The shrewd Queen used the interests of her many suitors then to transform a fledgling country into the powerhouse of Europe.
Yes, the VP sweepstakes demand shrewdness -- but also give us a chance to see if the candidate can navigate the country. The process has presented a wealth of opportunities for Mitt thus far and he has made the most of them.